Currently onsite · Saudi Aramco, Saudi Arabia

Senior Flutter
Developer.

5+ years building high-performance iOS & Android apps. Clean Architecture · BLoC · Firebase · Real-time systems · App Store & Play Store deployed.

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Flutter Dart BLoC Clean Architecture Firebase REST APIs GraphQL iOS · Android CI/CD SOLID Principles SQLite · Hive Figma Flutter Dart BLoC Clean Architecture Firebase REST APIs GraphQL iOS · Android CI/CD SOLID Principles SQLite · Hive Figma
About me

The developer
behind the apps

SS
Sayuj Sujeev
Senior Flutter Developer
iOS & Android Engineer
📍 Thrissur, Kerala, India
5+
Years Experience
3
Companies
100K+
App Users
99.5%
Crash-Free Rate

Currently: Senior Flutter Developer at Shras IT Solution, deployed onsite at Saudi Aramco, Saudi Arabia — building enterprise-grade industrial mobility apps.

I'm a Senior Flutter Developer with 5+ years of experience crafting high-performance, cross-platform mobile applications for iOS and Android. From healthcare to logistics to large-scale industrial systems — I've shipped it all.

My work spans Clean Architecture, BLoC state management, offline-first data sync, real-time messaging, and CI/CD pipelines. I don't just write code — I build robust, maintainable systems that scale.

A National Topper in Computer Science (CBSE 2016–17), I bring academic excellence and real-world engineering rigour to every project I take on.

FlutterDartBLoC FirebaseClean ArchitectureRiverpod GraphQLSQLiteFigma CI/CDUnit TestingMVVM
Career

Work experience

Building enterprise apps from Kerala to Saudi Arabia.

Shras IT Solution ● Active Saudi Aramco Contractor
Senior Flutter Developer
Dec 2023 – Present
📍 Saudi Arabia (Onsite)
  • Architected the Marine Mobility app for Saudi Aramco using Flutter, Clean Architecture, and BLoC — enabling real-time location tracking of 50+ vessels and improving fleet response time by 35%.
  • Built a real-time incident reporting module for the Safe Life app with push notifications, deep linking, and offline-first sync, reducing documentation time by ~40%.
  • Delivered a live chat feature with <200 ms message latency, used daily by 300+ field engineers.
  • Applied performance optimization and memory management — achieving a 99.5% crash-free session rate via Firebase Crashlytics on both iOS and Android.
FlutterBLoCClean Architecture FirebaseSQLiteHive Push NotificationsLocation Tracking
QBurst Technologies
Mobile Application Developer
Sep 2021 – Nov 2023
📍 Kerala, India
  • Developed and maintained 4 cross-platform Flutter apps for healthcare, retail, and logistics — serving 100,000+ combined active users.
  • Configured CI/CD pipelines using Bitrise and GitHub Actions, shrinking release cycles from 2 weeks to 3 days.
  • Achieved 80%+ code coverage with unit, widget, and integration testing via Firebase Test Lab — zero critical regressions across 12 production releases.
  • Cut API load times by 25% through RESTful and GraphQL integration with efficient caching strategies.
FlutterBLoCProvider GraphQLREST APIsBitrise GitHub ActionsFirebase Test Lab
Druglift Contract
Flutter Developer (Contract)
Mar 2020 – Apr 2021
📍 Remote
  • Rebuilt the customer-facing mobile app from scratch in Flutter, replacing a legacy React Native codebase — improving load time by 50%.
  • Solo-delivered the full project from design handoff to App Store and Google Play submission within 3 months.
  • Improved Google Play Store rating from 3.2 to 4.5 stars through pixel-perfect UI matched to Figma designs.
  • Handled 5,000+ SKUs with smooth lazy-loading, real-time inventory sync, and deep linking support.
FlutterDartREST APIs FirebaseFigmaApp Store Play Store
Key projects

Work that
ships and scales

FlutterBLoC Clean Architecture

Marine Mobility App

Saudi Aramco · Dec 2023 – Present

Enterprise fleet tracking system for Saudi Aramco's marine operations. Real-time vessel tracking, offline-first data sync, live incident reporting, and field messaging — built for 300+ engineers across 50+ vessels in low-connectivity environments.

50+
Vessels tracked
35%
Faster response
300+
Daily engineers
FirebaseSQLiteHive Location TrackingPush Notifications
Enterprise — NDA Protected
FlutterFirebase FCM

Safe Life App

Saudi Aramco · Dec 2023 – Present

Industrial safety & incident reporting platform for Saudi Aramco field engineers. Live push notifications, deep linking to specific incidents, background services, and real-time sync — ensuring safety compliance across remote marine sites.

40%
Faster documentation
<200ms
Message latency
99.5%
Crash-free rate
Deep LinkingBackground ServicesOffline Sync
Enterprise — NDA Protected
FlutterGraphQL BLoC · Provider

Healthcare & Retail Apps

QBurst Technologies · 2021 – 2023

4 production cross-platform Flutter apps across healthcare, retail, and logistics verticals. Implemented full CI/CD pipelines with Bitrise and GitHub Actions, 80%+ test coverage, and zero critical regressions across 12 production releases.

100K+
Active users
80%+
Test coverage
3 days
Release cycle
REST APIsMVVMCI/CD Unit TestingFirebase Test Lab
QBurst Technologies
FlutterDart Firebase

Druglift — Pharmacy App

Druglift · Mar 2020 – Apr 2021

Rebuilt the entire customer-facing app from React Native to Flutter, solo, in 3 months. Dynamic product catalog with 5,000+ SKUs, real-time inventory sync, and pixel-perfect UI — boosting Play Store rating from 3.2 to 4.5 stars.

50%
Faster load time
+1.3★
Play Store rating
5K+
SKUs handled
Method ChannelsDeep Linking FigmaApp StorePlay Store
View Portfolio
Technical skills

Full-stack mobile
expertise

📱

Mobile Development

FlutterDart Android SDKiOS SwiftUIMethod Channels
🏗️

Architecture & State

BLoCClean Architecture MVVMProvider RiverpodGetX SOLIDRepository Pattern
🔌

Backend & APIs

REST APIsGraphQL gRPCFirebase Auth FCMFirebase Firestore PostgreSQLSQLite HiveRealm
⚙️

DevOps & CI/CD

GitHub ActionsBitrise FastlaneApp Store Connect Google Play ConsoleGit
🧪

Testing & Quality

Unit TestingWidget Testing Integration TestingFirebase Test Lab Firebase CrashlyticsCode Review
🎨

Design & Tools

FigmaAdobe XD VS CodeAndroid Studio XcodePostman JiraConfluence
💻

Languages

DartJava KotlinSwift PythonJavaScript C++
📱

Mobile Features

Push NotificationsDeep Linking Background ServicesLocation Tracking Google MapsOffline-first App Lifecycle
Impact & Awards

Numbers that
speak for themselves

🛢️
300+

Daily Active Engineers

Saudi Aramco field engineers relying on enterprise Flutter apps built and maintained daily.

👥
100K+

Combined App Users

Production Flutter apps shipped at QBurst serving users across healthcare, retail, and logistics.

99.5%

Crash-Free Sessions

Maintained across all iOS and Android deployments using Firebase Crashlytics monitoring.

50%

Faster App Load

Achieved by rebuilding Druglift's legacy React Native app from scratch in Flutter.

How I work

My development
process

01

Discover

Understand requirements, user flows, and technical constraints before writing a line.

02

Architect

Define data models, state management strategy, API contracts, and folder structure.

03

Build

Clean, tested Flutter code with regular feature branches, PRs, and code reviews.

04

Test

Unit, widget, and integration tests. Firebase Test Lab runs on real devices.

05

Deploy

Automated CI/CD via GitHub Actions or Bitrise. App Store & Play Store submission.

Engineering craft

What I bring to
every project

Not just a coder — a craftsman who thinks in systems, ships with confidence, and obsesses over the details others skip.

🏗️

Architecture-first thinking

I architect before I code. Every project starts with Clean Architecture, defined data layers, and a state management strategy — so the codebase stays maintainable at any scale.

// Clean Architecture · BLoC
lib/
 ├── data/      // repos, models, datasources
 ├── domain/    // entities, use cases
 └── presentation/ // BLoC + UI

Performance obsession

I profile before I ship. Memory management, lazy loading, build optimisation — I don't guess, I measure.

App Load Time
−50%
Crash-Free Rate
99.5%
API Response Cache
−25%
Release Cycle
2wk→3d
🧪

Test-driven confidence

80%+ code coverage across every production app. Zero critical regressions over 12 consecutive releases at QBurst.

Unit Widget Integration 80%+ Coverage
📡

Offline-first by default

Deployed in Saudi Aramco's marine environments where connectivity is unreliable. SQLite + Hive sync strategies keep apps running at 100% availability.

SQLite Hive 100% Uptime
🚀

Automated delivery pipelines

I set up CI/CD from zero — GitHub Actions or Bitrise — so your team ships faster, with confidence. Releases went from 2-week cycles to 3-day cycles.

Push
Test
Build
Sign
Ship 🎉
🎨

Pixel-perfect UI

I implement Figma designs with zero deviation. The Play Store rating proof: 3.2 → 4.5★ through UI precision alone.

Figma Adobe XD 3.2 → 4.5★
Education

Academic foundation

🎓
Bachelor of Technology — Computer Science & Engineering
Universal Engineering College, Thrissur
Jul 2017 – Jun 2021

Strong foundation in data structures, algorithms, operating systems, and software engineering. Collaborated with startups on mobile app development during the program.

🏅
Higher Secondary (Class XII) — Computer Science Stream
S N Vidya Bhavan, Thrissur
Jun 2015 – Mar 2017

🏆 National Topper — Highest marks in Computer Science across India, CBSE AISSCE 2016–17 (All India Rank 1 in the subject).

Get in touch

Let's build something
remarkable

Available for freelance
projects & contracts.

Need a senior Flutter developer who delivers on time, writes clean code, and has shipped apps at enterprise scale? Let's talk. I respond within 24 hours.